Features: Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. This product is a electric heater with automatic constant temperature and energy saving. This PTC ceramic air heater has the characteristic of surface insulation and high security. Mainly used in small instruments, small box space environment temperature heating. Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Specification: Material: Aluminum & Plastic Weight: 318g/11.2oz Heating material: PTC thermistor Heating mode: heat through the flow of air Lead material: high temperature resistance wire Heating life: over 3 years Power: 1000W Voltage (Optional) : 110V/220V (the bare line is connected, regardless of the positive and negative pole, the rated voltage can be) Corrugation Length: 96mm Size: 140*102*26mm/5.5*4*1inch Package List: 1 x PTC Ceramic Air Heater PTC features have advantages: 1. Safety: PTC products have the incomparable advantages of traditional heating elements, such as constant temperature heating, no open flame, high thermal conversion rate, and little influence by power supply voltage. The application in electric heating appliances is more and more favored by R&D engineers. 2. Energy saving: PTC products have the characteristics of automatic energy saving. When the heater raises the ambient temperature, its power will gradually decrease, only 90%, 80%, or less of the rated power. 3. Long lifespan: PTC products are not damaged due to their own reasons during normal use, and even tens of thousands of repeated switches have no effect on their performance. The standard for measuring their lifespan is their aging degree. The general standard is that the power attenuation after 2000 hours of operation is less than 10%. Note: 1.Lead color is random. With 160 degrees normally closed temperature control protector, the heater should not be dry-dried. .